Cynthia D Nelson

US Patent:

8162874, Apr 24, 2012

Filed:

Apr 7, 2010

Appl. No.:

12/755888

Inventors:

Nicholas R. Whitehead - Hopkins MN, US
John Michael Gray - Brooklyn Park MN, US
James M. Haase - Maplewood MN, US
Cynthia R. Nelson Konen - Anoka MN, US
Thomas W. Hovind - Andover MN, US
Dale A. Young - Lake Elmo MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61M 31/00

US Classification:

604 67

Abstract:

A method comprises measuring a volume of fluid delivered per pump stroke for each of a plurality of substantially identical medical pumps. The substantially identical medical pumps each have a fixed stroke length. The method further comprises: storing indications of the measured volumes on one or more data storage mediums; and for each of the plurality of substantially identical medical pumps, generating a separate therapy control program based on the indication of the measured volume associated with that one of the plurality of substantially identical medical pumps.

US Patent:

8632496, Jan 21, 2014

Filed:

Apr 7, 2010

Appl. No.:

12/755872

Inventors:

Dale A. Young - Lake Elmo MN, US
Nicholas R. Whitehead - Hopkins MN, US
Ahmed Elmouelhi - Maple Grove MN, US
John Michael Gray - Brooklyn Park MN, US
James M. Haase - Maplewood MN, US
Thomas W. Hovind - Andover MN, US
Brian M. Pattock - Circle Pines MN, US
Cynthia R. Nelson Konen - Anoka MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61M 1/00

US Classification:

604151, 6048911

Abstract:

A medical pump subassembly comprises a magnetic cup forming a recess. The magnetic cup includes a protrusion within the recess. The cup forms a central aperture through the protrusion. The medical pump subassembly further comprises an electromagnetic coil within the recess and circumscribing the protrusion, a weld ring surrounding the recess, a barrier plate covering the recess, and a seal between the weld ring and the barrier plate to fluidically separate an interior of the cup from an external surface of the barrier plate.

US Patent:

20100280502, Nov 4, 2010

Filed:

Apr 7, 2010

Appl. No.:

12/755916

Inventors:

Thomas W. Hovind - Andover MN, US
Dale A. Young - Lake Elmo MN, US
John Michael Gray - Brooklyn Park MN, US
Nicholas R. Whitehead - Hopkins MN, US
Cynthia R. Nelson Konen - Anoka MN, US
James M. Haase - Maplewood MN, US
Brian M. Pattock - Circle Pines MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61M 31/00
B23Q 17/00

US Classification:

6048911, 2940701

Abstract:

An implantable medical device comprises a fluid reservoir configured to store a therapeutic agent; a port configured to deliver the therapeutic agent to a patient; a medical pump subassembly configured to actively transfer the therapeutic fluid from the fluid reservoir to the port; and a housing that contains the fluid reservoir, the port and the medical pump subassembly. The medical pump subassembly is configured to facilitate mechanical and electrical testing of the medical pump subassembly as a standalone component.

US Patent:

20110257591, Oct 20, 2011

Filed:

Apr 16, 2010

Appl. No.:

12/762064

Inventors:

Cynthia R. Nelson Konen - Anoka MN, US
Irfan Z. Ali - Woodbury MN, US
Keith A. Miesel - St. Paul MN, US
Scott L. Kalpin - Harris MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61M 5/00
G06F 17/18
G08B 21/00
G01F 23/00

US Classification:

604 67, 604 9301, 702 55, 340540, 702179

Abstract:

Unexpected changes in the volume of therapeutic fluid in the reservoir of a fluid delivery device are detected based on changes in the pressure of the reservoir measured over a period of time by a pressure sensor. Additionally, an ambulatory reservoir fluid volume gauge is provided to indicate an actual volume of therapeutic fluid in a fluid delivery device reservoir. The actual volume of therapeutic fluid in the reservoir indicated by the ambulatory reservoir fluid volume gauge is determined based on changes in the pressure in the reservoir measured over a period of time by a pressure sensor.

US Patent:

20120197238, Aug 2, 2012

Filed:

Mar 19, 2012

Appl. No.:

13/424003

Inventors:

Nicholas R. Whitehead - Hopkins MN, US
John Michael Gray - Brooklyn Park MN, US
James M. Haase - Maplewood MN, US
Cynthia R. Nelson Konen - Anoka MN, US
Thomas W. Hovind - Andover MN, US
Dale A. Young - Lake Elmo MN, US

Assignee:

MEDTRONIC, INC - Minneapolis MN

International Classification:

A61M 5/168

US Classification:

6048911, 604 67

Abstract:

A method comprises measuring a volume of fluid delivered per pump stroke for each of a plurality of substantially identical medical pumps. The substantially identical medical pumps each have a fixed stroke length. The method further comprises: storing indications of the measured volumes on one or more data storage mediums; and for each of the plurality of substantially identical medical pumps, generating a separate therapy control program based on the indication of the measured volume associated with that one of the plurality of substantially identical medical pumps.

US Patent:

6029499, Feb 29, 2000

Filed:

May 19, 1998

Appl. No.:

9/081418

Inventors:

Fred C. Sittler - Excelsoir MN
Cynthia R. Nelson - Anoka MN
Lawrence R. Majerus - Chaska MN

Assignee:

Rosemount Analytical Inc. - Anaheim CA

International Classification:

G01N 3002

US Classification:

73 2342

Abstract:

A gas chromatograph includes a manifold having a plurality of gas conduits formed therein. A valve module includes a support, a first valve mounted to the support and having a plurality of ports, and a column coupled to the support and being in communication with a port in the first valve. The valve module is pluggably engagable with the manifold. A detector is coupled relative to the column to detect gasses expelled from the column.

US Patent:

48692824, Sep 26, 1989

Filed:

Dec 9, 1988

Appl. No.:

7/282432

Inventors:

Fred C. Sittler - Victoria MN
Cynthia R. Nelson - Anoka MN

Assignee:

Rosemount Inc. - Eden Prairie MN

International Classification:

F16L 5518
F16K 1100

US Classification:

137 15

Abstract:

A micromachined miniature valve used for gas chromatography has very low valve and interconnection dimensions to reduce the fluid volume inherent in other gas switching valves to thereby provide accurate measurements involving small gas flows. In order to reduce actuating diaphragm size, without encountering excessive stress concentrations in the diaphragm, the diaphragm can be polyimide film actuated in connection with a silicon valve body having valve seats with ports that are opened or closed by deflection of the diaphragm. Silicon wafers can be micromachined using batch fabrication techniques to provide the necessary valve seats and passageways for operating. The valve assembly is produced as a layered sandwich made up of individual wafers, including an actuator layer, a stop layer, a valve seat layer, and a layer which has flow channels receiving gas from the valve seat layer and making the necessary interconnections to provided outlets. The diaphragm film is positioned between the valve seat layer and the stop layer, and is deflected or displaced to control passage of gases through the valve openings. The diaphragm layer is sealed to the silicon valve body by a process which involves fusing, such as glass frit or solder sealing.

US Patent:

58081798, Sep 15, 1998

Filed:

Dec 1, 1995

Appl. No.:

8/566133

Inventors:

Fred C. Sittler - Excelsior MN
Cynthia R. Nelson - Anoka MN
Lawrence R. Majerus - Chaska MN

Assignee:

Rosemount Analytical Inc. - LaHabra CA

International Classification:

G01N 3002

US Classification:

73 2342

Abstract:

A gas chromatograph includes a manifold having a plurality of gas conduits formed therein. A valve module includes a support, a first valve mounted to the support and having a plurality of ports, and a column coupled to the support and being in communication with a port in the first valve. The valve module is pluggably engagable with the manifold. A detector is coupled relative to the column to detect gasses expelled from the column.